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SubjectRe: [RFC][PATCH] identify in_dev_get rcu read-side critical sections
  > From suzannew Thu Sep 29 16:30:28 2005

> > From: Herbert Xu 30 Sep 2005 07:28

> > BTW, could you please move the rcu_dereference in in_dev_get()
> > into the if clause? The barrier is not needed when ip_ptr is
> > NULL.

> The trouble with that may be that there are three events, the
> dereference, the assignment, and the conditional test. The
> rcu_dereference() is meant to assure deferred destruction
> throughout.

Sorry, I was thinking in terms of the rcu_read_lock, so this is misstated.
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